A novel method for the analysis of the effectiveness of a UPFC for transient stability enhancement is presented. The analysis shows that the maximum power transfer, Pe max for line compensation by the UPFC can be written in the general form of Pe max=Pmax/(1-k1-k2) where Pmax is the maximum power transfer for the uncompensated line,...
View full abstract»

The advent of programmable digital signal processors (DSPs) is creating a revolution in monitoring, control, and testing of motor drives. Their special architecture and high performance make it possible to implement a wide variety of nontrivial control and measurement algorithms at high sampling rates and reasonable cost. AC motor drives are typically a complex combination of linear, nonlinear, an...
View full abstract»

We determine the shunt compensation at the load end of a long transmission line to maintain the load voltage at a fixed percentage of the sending-end voltage. We use the long-line model to determine the critical power that the line can transmit with and without series compensation.
View full abstract»

The use of the minimum singular value (MSV) of the load flow Jacobian has been proposed as a security index for monitoring how close the operating condition of a power system is to a voltage instability. However, direct computation of singular value decomposition (SVD) is a very time consuming task. P.A. Lof et al. (see IEEE Trans. on Power Systems, vol.7, no.1, p.54-64, 1992) report on an elegant...
View full abstract»

The wavelet transform is beginning to be used widely in power engineering. Its effectiveness for analyzing transients with time localized information is now well known. Multiresolution analysis is especially suitable for feature enhancement of transients and thus makes it possible for power disturbances to be classified. In addition, the wavelet transform works well where the Fourier transform fai...
View full abstract»